Add auth support (#21)

* Updates

* Update

* Update

* Update

* Update

* Yarn sometimes prefers npmrc, so use same token

* Description

* Update readme

* Feedback

* Add type

* new toolkit and scoped registries

* npmrc in RUNNER_TEMP

* Dont always auth

* Try exporting blank token

* Get auth working for now pending runner changes

* Fix string interpolation for auth token.

* Don't export both userconfigs

* Update authutil.js

* Add single quotes for authString

* Fix the registry string.

* Use userconfig and append trailing slash

* Keep in root of repo

* Try just adding auth token

* Remove auth token

* Try changes again

* Add tests

* Npm and GPR samples

* Add types

node_modules/deepmerge/index.js

@@ -0,0 +1,84 @@
+var defaultIsMergeableObject = require('is-mergeable-object')
+
+function emptyTarget(val) {
+	return Array.isArray(val) ? [] : {}
+}
+
+function cloneUnlessOtherwiseSpecified(value, options) {
+	return (options.clone !== false && options.isMergeableObject(value))
+		? deepmerge(emptyTarget(value), value, options)
+		: value
+}
+
+function defaultArrayMerge(target, source, options) {
+	return target.concat(source).map(function(element) {
+		return cloneUnlessOtherwiseSpecified(element, options)
+	})
+}
+
+function getMergeFunction(key, options) {
+	if (!options.customMerge) {
+		return deepmerge
+	}
+	var customMerge = options.customMerge(key)
+	return typeof customMerge === 'function' ? customMerge : deepmerge
+}
+
+function getEnumerableOwnPropertySymbols(target) {
+	return Object.getOwnPropertySymbols
+		? Object.getOwnPropertySymbols(target).filter(function(symbol) {
+			return target.propertyIsEnumerable(symbol)
+		})
+		: []
+}
+
+function getKeys(target) {
+	return Object.keys(target).concat(getEnumerableOwnPropertySymbols(target))
+}
+
+function mergeObject(target, source, options) {
+	var destination = {}
+	if (options.isMergeableObject(target)) {
+		getKeys(target).forEach(function(key) {
+			destination[key] = cloneUnlessOtherwiseSpecified(target[key], options)
+		})
+	}
+	getKeys(source).forEach(function(key) {
+		if (!options.isMergeableObject(source[key]) || !target[key]) {
+			destination[key] = cloneUnlessOtherwiseSpecified(source[key], options)
+		} else {
+			destination[key] = getMergeFunction(key, options)(target[key], source[key], options)
+		}
+	})
+	return destination
+}
+
+function deepmerge(target, source, options) {
+	options = options || {}
+	options.arrayMerge = options.arrayMerge || defaultArrayMerge
+	options.isMergeableObject = options.isMergeableObject || defaultIsMergeableObject
+
+	var sourceIsArray = Array.isArray(source)
+	var targetIsArray = Array.isArray(target)
+	var sourceAndTargetTypesMatch = sourceIsArray === targetIsArray
+
+	if (!sourceAndTargetTypesMatch) {
+		return cloneUnlessOtherwiseSpecified(source, options)
+	} else if (sourceIsArray) {
+		return options.arrayMerge(target, source, options)
+	} else {
+		return mergeObject(target, source, options)
+	}
+}
+
+deepmerge.all = function deepmergeAll(array, options) {
+	if (!Array.isArray(array)) {
+		throw new Error('first argument should be an array')
+	}
+
+	return array.reduce(function(prev, next) {
+		return deepmerge(prev, next, options)
+	}, {})
+}
+
+module.exports = deepmerge